Question

Example of cationic surface active agent ………

• A. Methyl cellulose
• B. Bentonite
• C. Benzalkonium chloride
• D. Magnesium hydroxide

Hint:

Cationic surfactants = quaternary ammonium compounds like benzalkonium chloride.

Answer 1

The Correct Option is C

Benzalkonium chloride is a cationic surfactant commonly used as a preservative and antimicrobial agent in pharmaceutical formulations. It contains a positively charged quaternary ammonium group.